BRT-060-M - Replacement medium (hub and BB) rod and nut for BRT-060. 65mm, stainless steel, 5/16" ACME threaded rod with standard nut and static nut fitted with a precision needle bearing set with ground surfaces to provide smooth and accurate, bind-free action. This rod and nut can be also combined with the BRT-051 suspension guide kit to complete a stand alone suspension service kit.